The Glosten Ballast management System developed under SBIR Phase I determined that tracking ballast exchanges was feasible and showed strong commercial viability. Phase II of this project is intended to demonstrate, with a full-scale shipboard installation, that automated tracking of a vessel's ballast system is practical and cost effective for both the operator and the regulator. The system is the backbone which enables the user to manage ballast, including envisioned modules for the future management of treatment systems, automated uplinks to shore based data centers, and integration with cargo loading systems. The objective of the Phase II work proposed here, is to develop the core Ballast Management System, and install, test and document the functionality of the system on board the tanker Seabulk Mariner.